20 Longest Borders compared to Continent

Which are the longest borders countries compared to the length of all borders in that? You are shown the %. Note that Country A always comes before Country B in alphabetical order
I hope I decided correctly what continent to consider for borders between countries in different continents! (eg Panama-Colombia in North America)
Despite this being a 'yellow box' quiz, guessing one occurrence of a country will reveal its presence in other pairs
Quiz by scambigol
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Last updated: January 13, 2016
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First submittedJanuary 13, 2016
Times taken30
Average score73.1%
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%
Country A
Country B
100
Indonesia
Papua New Guinea
54
Canada
United States
19
Mexico
United States
15
Argentina
Chile
10
Bolivia
Brazil
8
Kazakhstan
Russia
6.6
Brazil
Venezuela
6.1
Colombia
Venezuela
5.8
Guatemala
Mexico
5.6
Argentina
Paraguay
5.6
Honduras
Nicaragua
5.5
China
Mongolia
4.9
Brazil
Colombia
4.8
Bangladesh
India
4.7
Norway
Sweden
4.7
Brazil
Peru
4.6
Russia
Ukraine
4.5
Colombia
Peru
4.3
China
Russia
4.3
Ecuador
Peru
1 Comments
+1
Level 90
Jan 13, 2016
Nice!